should be loosened.
4.5 PREPARATION FOR
MEASUREMENT
4.5.1 Put on the “
” button. If the
battery voltage is less than 7V,
display will show “
”, the battery
should be changed at this time.
4.5.2 The “
” besides the input jack
shows that the input voltage or
current should be less than
specification on the sticker of the
meter to protect the inner circuit
from damaging.
4.5.3 Select a function and a range for
the item to be measured through
rotating the range switch
accordingly. When the value scale
to be measured is unknown
beforehand, set the range selector
at the highest position.
4.5.4 When connection, first connect to
the public testing line, then to the
electriferous testing line. When
you’ll remove it, you should remove
the elecriferous one.
22 Digital Multimeter